MATHEMATICS HIGH SCHOOL

Donna is d years old, and her age one year ago was half her age sixyears from now.

Pls help

Answers

Answer 1
Answer: this isnt enough information

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Find the unit rate for number of parts manufactured per hour if 1630 parts are made in 6 hours. Round to the nearest integer.291 parts/h
237 parts/h
325 parts/h
272 parts/h

Answers

Unit rate is defined as the amount of work done per unit time. In this case, the "work" refers to the amount of parts made. Unit time is then measured in hours. Since the given problem states the total number of parts manufactured and the total time of manufacturing, we simply have to divide the number of parts by the manufacturing time to obtain the unit rate. This is done as follows:

Unit rate = total number of parts manufactured / total manufacturing time
Unit rate = 1630 parts / 6 hours
Unit rate = 271.667 parts/h

Therefore the unit rate is approximately 272 parts/h.

Answer:

Your answer is 272 parts/h.

Step-by-step explanation:

Solve for the indicated variable.

s = p + g/h for g.

Answers

Answer:

g = h(s-p)

Step-by-step explanation:

  1. find the variable of interest — It is in the numerator of one of two terms on the right side of the equation
  2. subtract every term on that side not containing the variable — subtract p to get s-p = g/h
  3. multiply by the inverse of the coefficient of the variable of interest — the coefficient is 1/h, so we multiply by h to get ... h(s-p) = g
  4. rearrange to the desired form. Here, it is probably OK to leave the parentheses and to simply put g on the left

g = h(s -p)

Answer:

(s-p)*h =g

Step-by-step explanation:

s = p + g/h

Subtract p from each side

s-p = p=p + g/h

s-p = g/h

Multiply by h

(s-p) *h =g/h *h

(s-p)*h =g

Please help! I will Upvote!Find a solution to the following system of equations.
−2x + y = −3
−x + 2y = 3

A- (–3, –9)
B- (3, 3)
C- (–21, –9)
D- (0, 2)

Answers

B (3,3)Put 3 in the x spot and 3 in the y spot. Solve for both equations that way.

What is (x-2) * (x+2)

Answers

(x-2)*(x+2)

Distribute

(x)(x)+(x)(2)+(-2)(x)+(-2)(2)

x²+2x-2x-4

= x²-4


I hope that's help;0

Lisa purchased a hat for $10, a purse for $20, and a book for $23.The sales-tax rate was 7.2 percent. What was the total amount she paid?

Answers

From information given Lisa bought three items.

10 + 20 + 23 = 53 dollars ( which is total pre- tax cost)

The sales tax rate is at 7.2% . Value of this tax in dollars will be:

7.2 % of 53 →  (7.2 / 100) × 53  →  0.072 × 53 =  3.816

So the tax rate value is 3.816

Total cost of items will be 53 + 3.816 =  56. 816

Rounded off  to the nearest cent 56.816   =  56.80

Therefore Lisa paid a total of $ 56.80


 

The coordinates of the endpoints of AB and CD are A(x1, y1), B(x2, y2), C(x3, y3), and D(x4, y4). Which condition proves that AB||CD ?

Answers

Based on the concept of coordinates and the available information, the correct answer is option D. (y2 - y1)(y4 - y3) = (x2 - x1)(x4 - x3)

What is Coordinates?

Coordinate is a mathematical term that is used to describe the values on which mathematical operations occur in an algebraic expression.

In this case, to determine if AB is parallel to CD check if the slopes of the two lines are equal since parallel lines have the same slope.

The slope of a line passing through two points (x1 y1) and (x2 y2) is given by the formula:

m = (y2 - y1) / (x2 - x1)

So the slope of line AB is:

m_AB = (y2 - y1) / (x2 - x1)

And the slope of line CD is:

m_CD = (y4 - y3) / (x4 - x3)

If AB is parallel to CD then the slopes m_AB and m_CD should be equal.

Therefore the condition to prove that AB is parallel to CD is:

m_AB = m_CD

If the condition m_AB = m_CD is true it proves that line AB is parallel to line CD.

Hence, in this case, the correct answer is option D. (y2 - y1)(y4 - y3) = (x2 - x1)(x4 - x3)

Learn more about Coordinates here: brainly.com/question/17206319

#SPJ5

The option is in the image attached to the answer.

Answer:

c= -1

Step-by-step explanation:
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